PEDIATRICS Vol. 85 No. 6 June 1990, pp. 1022-1026
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Antibodies to Human Immunodeficiency Virus in the Breast Milk of Healthy, Seropositive Women

Laurent Bélec MD1, Jean-Claude Bouquety MD1, Alain J. Georges MD1, Max R. Siopathis MD1, and Paul M. V. Martin MD1

1 From the Institut Pasteur de Bangui and Centre National Hospitaller Universitaire de Bangui, Central African Republic

Reports of rare cases of suspected transmission of the human immunodeficiency virus (HIV) from mother to children by breast milk have been recently published. To study the factors that possibly limit HIV transmission through breast-feeding, milk samples obtamed from 15 healthy, seropositive mothers and 4 serobegative control subjects were studied for the presence of anti-HIV antibodies. All samples from seropositive women contained IgG antibody against envelope glycoproteins gpl6O and/or gpl20, and 11 of 15 samples contamed IgA antibodies against gpl60. IgA antibodies against other viral antigens were more rarely recovered, except against the internal proteins of the virus, p18 and p25. The finding of IgA antibodies to HIV-1 in breast milk establishes that the virus elicits a local immune response in heterosexual, seropositive women. The role of local antibodies in the postnatal transmission of HIV remains to be determined.

Key Words: human immunodeficiency virus • breast-feeding • postnatal transmission • local immunity

Submitted on November 15, 1988
Accepted on June 27, 1989




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